2993405 has 4 divisors (see below), whose sum is σ = 3592092. Its totient is φ = 2394720.

The previous prime is 2993399. The next prime is 2993407. The reversal of 2993405 is 5043992.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1999396 + 994009 = 1414^2 + 997^2 .

It is not a de Polignac number, because 2993405 - 2⁸ = 2993149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2993407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 299336 + ... + 299345.

It is an arithmetic number, because the mean of its divisors is an integer number (898023).

2^2993405 is an apocalyptic number.

It is an amenable number.

2993405 is a deficient number, since it is larger than the sum of its proper divisors (598687).

2993405 is an equidigital number, since it uses as much as digits as its factorization.

2993405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598686.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 2993405 is about 1730.1459476010. The cubic root of 2993405 is about 144.1191946490.

The spelling of 2993405 in words is "two million, nine hundred ninety-three thousand, four hundred five".